Engine



"caused by imperfect'connectionf betweenthe. H

ou each 's1'de" tt-hereof with :a cylindrical Patented Oct. 18,1927.

I ADV-AH L..POWEL L,..OI MILES CITY, monranA assreivon .TQTEE A L. rownniirownn .ooMrANY xnconron'mrnn;

E 3 ENGINE.

Appl ication filed Ndvinber 9; 1923. SerialNo. 67 3,8 58.

invention relates to improvements ;in internal combustion engines in which I obtain di-rect rotary motion by i means ref the inertia ota fluid.

ll/lore specifically; my invention; relates to improvements in Ha doi'i'l'ilex-acting internal combustion engine having -arplurality of pistons which impart motion toa fluid contained between the pistons," which i fluid, by my novel means, imparts 'rotary motion 'to pulley.

Heretofore, it has been: customarytoconthe: other piston is on its exhaust stroke.

"nect the. pistonof an'engine' to a crank shaft "by means of a p1tman,but there are 'many -disadvantagesto=suchanarrangement,"such p I indicated by: the? reference characters lOrand A pulley 13 is interposed between the.

:as' the side slap of the piston against the cylinder wall, the knock and attending-noise Qpitman an'd the'crank or' the wristpinyand furthermore, such an arrangement of parts causes the crank tobe on dead centeryat' the very moment that the piston startsion the travelfof' its explosion stroke. tI seek to.

overcome error these disadvantages by pror viding a simple and novel means whereby the motion of the piston is converted lnto a I constantly rotatlng motion of a drlven pulley.

Within the pulley, I provide a large central bore closed atone end by means of a suitable valve, and around said bore, .1 pro vide a number of small spiral bores, each of large bore.

which is provided with a valve on the side of the pulley opposite the valve of the As the fluid is driven by the pistons through the large bore, it impinges against spiral ridges carried by'the pulley and rotates the same. As the liquid is driven in the opposite direction through the small spiral bores, the fluid or liquid impinges against the sides of the spirals and rotates the pulley. The object of the valves is to control the direction of flow of the fluid through the bores.

In the accompanying drawings, I show an application of my improvement in which Figure 1 is a side elevation partly in section of an engine embodying my invention, Figure 2 is a cross section on the line 2-2 of Fig. 1, showing the fluid channels or bores, and

Figure 3 is a sectional view of the check valves used in my improved engine.

A base 1 is provided with two upstandingmountedtwo i cylinders?) and- 4, the -axes of said cylinders lyingiin the same istraight "qline; E'In each of said cylinder, i I cprovide an airinletw5,:a gasiinlet 6' a'ndwexhaust 7, :ithe two inlets and" 2 exhaust :being Wconvenati'onalz. In each tofthe cylinders Brand-14,11

:provide =cooperatinga'recipro'cating "pistons 8 and: 9 respectively. Suitable means (not shown) are 'atprovided' to govern t the "explosions. thatntake place in the two cylinders :3

wand 145 which explosions are so. timed" that wheneither "piston is oniits' explosion stroke,

The 'side walls of each of the rcyli-nders 3 illld 1 tarebeveled at their inner ends {as 1 1. cylinders 3' and :4, which? pulley 1* is provided i flange;12?having itsvinner or outer'iperiphery beveled sovasnto make ra wedgerffitflwithw the b'ev'elede edges E10 a-ndi ll of the cylinders? 3 -11 and! 4:. A large StIzaight-vopeningM-isiapror @uvi'ded within: the pulle yf213, -"which oopening extends substantially straight through the said pulley, and which opening is closed at one end thereof by a valve 15 of any conventional construction. A plurality of small openings 16 extend through the pulley,but these openings or channels are spiral in form as clearly shown by dottedlines in Fig. 1. Each of these openings is closed by a valve 17 the valve 15 being on the opposite side of the pulley from the valve 17.

In practice, itis necessary to provide some means whereby the fluid 18 interposed between the cylinders 8 and 9 may be prevented from leaking at the points of contact between the rotating pulley and the stationary cylinders. I successfully prevent such leakage by providing the beveled edges 10 and 11, on the cylinders 3 and 4, contacting with the beveled edges on the flange 12 of the pulley 13. This makes a fluid tight fit when properly adjusted.

Any suitable means may be provided for "lubricating the bearings so formed, but as the lubricating feature forms no part of my invention, I have lllustrated no particular lubricating means.

I also find it preferable to extend the hub of the pulley 13 so as to occupy the space between'the beveled parts 10 and 11 of the cylinders 3 and 4, as is clearly shown in Fig. 1. The object of this construction is 4, 'moving the piston 9 to the right.

right-handside of Fig. 1.

to further insure that there shall be no leakage of fluid at the bearings, and also to hold the axis of rotation of the pulley 13 stationary. I

I furthermore find it desirable to provide ridges 19 extending spirally of the opening 1 1. As the piston 8 is forced to the right-in Fig. 1, the fluid is forced through the small openings 16, opening the valves 17, and thereby forcing the fluid into the cylinder The momentum of the fluid striking the sides of the openings 16 causes the pulley 13 to be rotated clockwise when viewed from the The explosion now takes place in the cylinder 4 andv the fluid is forced through the opening 14, opening the valve 15 in the cylinder 3, the momentum of the fluid striking against the ridges 19 rotating the pulley 13 clockwise.

Obviously, many modifications might be made in this invention'without departing from the spirit and scope thereof. I, therefore, do not wish to limit myself to the specific embodiment herein shown except as I might limit myself in the annexed claims.

I claim: 1. In an engine, a plurality. of cylinders,

' a piston in each of said cylinders, a pulley interposed between the cylinders and provided with a large bore having inwardly extending spiral ridges, said pulley being also provided with a plurality of spiral bores,

- a valve at oneend of the large bore, a valve at the opposite end of each of the spiral bores and a fluid interposed between said pistons and adapted to pass through the bores.

2. In an engine, a plurality of cylinders, apiston in each of said cylinders, a pulley interposed between the cylinders and provided with a large central bore having inwardly extending spiral ridges, said pulley being also provided with a plurality of spiral bores extending in an opposite direc tion from the spiral ridges, a valve at the end of the large bore, a valve at the opposite end of each of the spiral bores, and a fluid interposed between said pistons and adapted I to pass through the bores.

3. In an engine, a plurality of cylinders, a piston in eachof said cylinders, apulley interposed between the cylinders and provided with a-large bore having inwardly extending spiral ridges, said pulley being also provided with a plurality of spiral bores, a valveat one end of the large bore, a valve at the opposite end of each of the spiral bores, 21' fluid interposed between said pistons, said valves serving as a means to alternately direct the fluid to the large bore and then to the spiral bores, said ridges and spiral bores being of such a configuration that the pulley is rotated in'one direction regardless of the direction of movement of the said fluid, actuated by the said pistons.

In testimony whereof I affix my signature.

ALVAH L. POWELL. 

